AC works more off hen on.
It didn't work x 1 year (only one evening it turned on over that time), then worked for 2 years, followed by another 1 1/2 years of not working and 2 months working again and currently not working.
These cycles occur without intervention (quote is around $1000 for new a/c, no other options provided for repair).
When the air conditioning fails, the air circulation is failing as well.